Things found only in Yemen and not anywhere else in the world.
~ There is an island only found in yemen called Socotra island. Socotra island contains more than 375 uncommon and weirdest looking plants that are found nowhere else on the planet but Yemen.One of the most striking of Socotra's plants is the dragon's blood tree which is a strange-looking, umbrella-shaped tree. Its red sap was thought to be the dragon's blood of the ancients, sought after as a medicine and a dye and today used as paint and varnish. Also important in ancient times were Socotra's various endemic aloes, used medicinally, and for cosmetics .By the way, this tree can stay alive for years and years long without water.
For further information please visit: For more information, please go to: http://www.youtube.com/watch?v=Z-wDq4Ya7fM ~Aden tanks also called Tawila Tanks where the wholes were created inside the rocky mountains. And the purposes of these tanks are; to restore the water that comes as rain then use it for watering plants, and to protect the city from any flood. The mountains are above Aden city, so when it rains the water falls into these tanks to protect the Aden city from any flood that would harm and destroy the city and to keep the water for the plants. For more information please feel free to go to: http://vimeo.com/11161787 ~ Building a huge earth filled dam in the second half of the 6th century BC to hold back some of the water that came down the wadi. Known as Marib Dam. Behind the dam is the wadi where water would have rushed out into the desert. The ancient dam is farther down this wadi, near the beginning of the wadi. Its location is marked by a rectangle. This dam restore water to when its real need it. For more information, please visit; http://www.basf.de/basf2/img/produkte/kunststoffe/styrodur/pdf/plastics_saba_e.pdf |